PTFE ntama a ɛyɛ hyew kɛse no nam so yɛ denam nsu a wɔde hyɛ mu biako (biako a ɛtwam: ntɛmntɛm, ɛho ka sua, ade a wɔde kata so a ɛyɛ tratraa, ɔfasu a ɛyɛ den a pinholes wɔ so) anaasɛ nsu a wɔde hyɛ mu pii (2-3+ twam: nea wɔde kata so a ɛyɛ torotoro, ɛyɛ den, ɛnyɛ pinhole, PTFE a ɛwɔ mu 50-70%, adwumayɛ a ɛkorɔn, ɛka a ɛkɔ soro). Single-dip fata gaskets a ɛba fam, bere tiaa mu mats, ne nneɛma a ɛma ahome. Multi-dip ho hia ma aduan-grade baking sheets, non-stick conveyor belts, high-frequency circuit substrates, nnuru liners, ne adansi membranes.

PTFE a ɛkorɔn-ɔhyew ntama ani ayaresa bubu nnuru inertness ma bonding / tintim. Akwan anan: nnuru a wɔde kyerɛw (sodium-naphthalene, ahoɔden a ɛwɔ soro 20→40-50 dyn/cm, esum a ɛtra hɔ daa, micro-porous nhyehyɛe), plasma ayaresa (nano-roughening, kuw a ɛyɛ adwuma grafting, mfɛnsere tiawa a ɛyɛ adwuma), corona ayaresa (thin-film, ɛporɔw ntɛmntɛm, emu dɔ a anohyeto wom), ne laser ayaresa (precision micro-patterning, controlled carbonization). Akwan nyinaa honam fam roughen na nnuru de polar akuw (C=O, -OH, -COOH) ba na ama adhesive bonding atumi.

Raw material ahotew ne fapem titiriw a ɛma PTFE ntama a ɛyɛ hyew kɛse no yɛ papa. Efĩ (residual initiators, surfactants, metal ions, sizing agents a efĩ wom) ma ɔhyew sɛe ntɛm (bubbles, blistering above 260°C), a ɛnyɛ pɛpɛɛpɛ a ɛnyɛ nea ɛbata so (adhesion anchor points), anyinam ahoɔden a wɔde siw ano a ɛso tew (dielectric loss, lower breakdown voltage), mfiri ahoɔden a ɛyɛ mmerɛw (stress concentration, cracking), ne kɔla a ɛyɛ kɔkɔɔ/kɔla a ɛsakra. Nneɛma a wɔde yɛ nneɛma a ɛho tew kɛse hwɛ hu sɛ PTFE ntama a ɛne FDA hyia, ɛtra hɔ kyɛ, ɛyɛ adwuma yiye.

PTFE-coated fiberglass ntama sintering hwehwɛ bere pɔtee a wɔde kura mu wɔ 370-400°C. Fononoo a ɛkɔ so: 30-90s (tenten) kosi 3-5+ min (a ɛyɛ den). Fononoo a wɔde yɛ batch: simma 5-15. Under-sintering ma opaque, rough coatings a ɛpopae; sɛ wɔma ɛyɛ hyew boro so a, ɛma ɛyɛ kɔkɔɔ, ɛyɛ mmerɛw, na ɛma fluoride mframa a awuduru wom fi mu. Adeyɛ a wɔyɛ no yiye: fa fononoo mu hyew trackers di dwuma, yɛ nhwehwɛmu a wɔde aniwa hu (semi-transparent, flexible), na yɛ teyp twetwe sɔhwɛ ahorow. Bere nyinaa hwɛ hu sɛ ɔhyew a ne kɛse nyinaa yɛ pɛ.

PTFE ntama a ɛyɛ hyew kɛse hwehwɛ sɛ wɔde ahwɛyiye di ho dwuma na ama wɔahwɛ ahu sɛ ahobammɔ ne nkwa tenten. Ahwɛyiye atitiriw: ntra 260°C da (ɛboro 320°C ma wusiw a awuduru wom fi mu), kwati sɛ ɛbɛbɔ akuturuku a ano yɛ nnam (ɛpaapae ade a wɔde kata so, ɛma fiberglass da adi), nsiesie abrasive biara nni hɔ (dade aboa nhoma sɛe baabi a ɛnkyere so), sie baabi a ɛhɔ yɛ hyew a ɛtrɛw (ɛmma ɛntetew), na fa foforo si ananmu bere a ɛyɛ akisikuru anaasɛ ɛho ayɛ kurukuruwa no. Store rolled, akyirikyiri fi UV. Hyɛ nsateaa a ɛmma ɔhyew nkɔ mu bere a woredi ho dwuma no.

PTFE ntama a ɛyɛ hyew kɛse no wɔ coefficient of thermal expansion (CTE) a ɛyɛ 30-60 ppm/°C (warp/weft) – ɛkorɔn sen fiberglass nkutoo nanso ɛba fam koraa sen PTFE kronkron (100-200 ppm/°C). PTFE nya nsakraeɛ a ɛba mpofirim wɔ ne dodoɔ mu (1-2%) wɔ 19°C ne 30°C phase nsakraeɛ mu. Sɛnea ɛbɛyɛ a wobɛkwati buckling, tearing, ne delamination: design clearances ma free expansion, kwati tensioning denam phase transition temperatures so, fa automatic tensioners di dwuma wɔ conveyor belts so, na fa anti-buckling overlap design di dwuma. Ɛho hia sɛ wɔhwehwɛ mu daa sɛ awɔw a ɛsen fa mu anaa.

PTFE ntama a wɔde to paanoo a ɛyɛ hyew kɛse no de mfaso atitiriw anan ma: adwumayɛ a ɛnyɛ nea ɛbata ho (ɛho nhia ngo anaa esiam, paanoo a ɛyɛ mmerɛw no gyae ma ɛho tew), ɔhyew a ɛtrɛw (-70°C kosi 260°C, ahobammɔ wom ma fononoo kɔ frigye mu), wotumi san de di dwuma bio (kyinhyia mpempem pii, ɛnyɛ den sɛ wobɛhohoro), ne ɔhyew a ɛkɔ mpo (ɛsiw ɔhyew ano, browning a ɛkari pɛ). Aduan-grade FDA compliant, wɔtra hɔ kyɛ sen parchment krataa na wɔyɛ adwuma sen silicone mats a ɔhyew a ɛkɔ yiye na ɛyɛ fɛ ne soro texture.

PTFE ntama a ɛyɛ hyew kɛse ho hia wɔ ntade a wɔde hyɛ ntam adwuma mu. Nneɛma atitiriw a wɔde di dwuma: conveyor belts a enni awiei a wɔde kɔ so fusing mfiri (ɛsiw ɔhyew a ɛyɛ hyew adhesive a ɛbata ho, wrinkle-free conveying), non-stick cover ne padding ntama ma flat heat press (ɛbɔ platens ho ban fi adhesive efĩ ho), conveyor belts ma dot paste/powder coating lines (ɛkura adhesive dots a enni dɛm bere a ɛreyow/sintering), ne dade mpaboa kataso a wɔde yɛ nhwɛsode a wɔde mia. Ne kɛse fi 0.13mm (hare padding) kosi 0.55mm (heavy-duty conveyor belts).

Wɔnam akwan titiriw abien so nya anti-static PTFE ntama: coating doping (frafra conductive fillers te sɛ carbon black mu PTFE emulsion, yɛ percolation network wɔ critical concentration) ne substrate weaving (embedding conductive fibers wɔ fiberglass ntama mu). Wɔhwɛ soro resistivity so wɔ 105–109 Ω. Nnyinasosɛm no: yɛ ɔkwan a ɛma nsu fa mu a ɛma static charges no kɔ ntɛm ara, na esiw asiane a ɛbɛboaboa ano ano. Grounding yɛ ahyɛde na ama woatumi ayɛ adwuma yiye.

PTFE ntama a ɛyɛ hyew kɛse (PTFE-coated fiberglass) ma nnuru a ɛyɛ soronko a ɛko tia, egyina acid a wɔahyɛ no den (a aqua regia ka ho), alkalis a ano yɛ den (wɔ dan mu hyew mu), organic solvents, ne oxidizing agents ano. Nea ɛka ho: alkali dade a ayɛ hyew ne halogen nnuru a ɛyɛ hyew kɛse tow hyɛ PTFE so. Nneɛma a wɔde kata so a ɛsɛe no ma fiberglass nya hydrofluoric acid ne alkali a ɛyɛ hyew a wɔahyɛ no den. Ɔhyew a ɛboro 260°C ma ahoɔden a ɛko tia no so tew. Wɔ nnuru a atwa yɛn ho ahyia dodow no ara fam no, PTFE ntama da so ara yɛ nea ɛyɛ den yiye na wotumi de ho to so.